PMC-R30L - Sony Audio Service Manual (repair manual). Page 2

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SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
!
  OR  DOTTED  LINE
WITH  MARK  
!
  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
Dimensions (incl. projecting parts)
Player: Approx. 160 
×
 249 
×
 227 mm (w/h/d)
Speaker: Approx. 150 
×
 245 
×
 192 mm (w/h/d)
Mass
Player: Approx. 2.8 kg
Speaker: Approx. 1.2 kg
Supplied accessories
Remote control RMT-C107AD (1)
FM lead aerial (1)
MW/LW loop aerial (1)
Design and specifications are subject to change without
notice.
TABLE OF CONTENTS
1. SERVICING NOTES
......................................................... 3
2. GENERAL
Playing a CD ........................................................................... 4
Listening to the radio ............................................................... 4
Playing a tape .......................................................................... 5
Recording on a tape ................................................................. 5
3. DISASSEMBLY
3-1.   Cabinet (Front) Assy ........................................................... 6
3-2.   Cabinet (Upper) Assy .......................................................... 7
3-3.   Power Board ........................................................................ 7
3-4.   Main Board ......................................................................... 8
3-5.   CD Board ............................................................................ 8
3-6.   Optical Pick-up ................................................................... 9
3-7.   Tape Mechanism Block ....................................................... 9
3-8.   Control Board and Back Light Board ............................... 10
3-9.   How to Apply the Belts ..................................................... 10
3-10. Head, Magnetic (HRP301) ................................................ 11
3-11. Motor Assy (M301) ........................................................... 11
4. MECHANICAL ADJUSTMENTS
............................... 12
5. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 12
Tuner Section ......................................................................... 13
CD Section ............................................................................ 14
6. DIAGRAMS
6-1.   IC Pin Description ............................................................. 15
6-2.   Circuit Boards Location .................................................... 16
6-3.   Block Diagram –CD Section– ........................................... 17
6-4.   Block Diagram –Main Section– ........................................ 19
6-5.   Printed Wiring Boards –CD Section– ............................... 21
6-6.   Schematic Diagrams –CD Section– .................................. 23
6-7.   Printed Wiring Boards –Control Section– ......................... 25
6-8.   Schematic Diagrams –Control Section– ........................... 27
6-9.   Printed Wiring Boards –Main Section– ............................ 29
6-10. Schematic Diagram –Main Section (1/2)– ........................ 31
6-11. Schematic Diagram –Main Section (2/2)– ........................ 33
6-12. Printed Wiring Board –Power Supply Section– ................ 35
6-13. Schematic Diagram –Power Supply Section– ................... 35
7. EXPLODED VIEWS
7-1.   Cabinet (Rear) Section ...................................................... 40
7-2.   Cabinet (Front) Section ..................................................... 41
7-3.   Cabinet (Upper) Section .................................................... 42
7-4.   Tape Mechanism Section-1 ............................................... 43
7-5.   Tape Mechanism Section-2 ............................................... 44
7-6.   Tape Mechanism Section-3 ............................................... 45
7-7.   Tape Mechanism Section-4 ............................................... 46
7-8.   Optical Pick-up Section .................................................... 47
7-9.   Speaker Section ................................................................. 48
8. ELECTRICAL PARTS LIST
......................................... 49
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